Home / 7,787.54-11,681.31-1,944.14

Finding the Fourth Proportional to 7,787.54, 11,681.31 and 1,944.14

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Solution

The fourth proportional to 7,787.54, 11,681.31 and 1,944.14 is: 2,916.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.54 : 11,681.31 = 1,944.14 : x
  2. Step 2: Convert to fraction form
    7,787.54/11,681.31 = 1,944.14/x
  3. Step 3: Cross multiply
    7,787.54x = 11,681.31 × 1,944.14
  4. Step 4: Simplify right side
    7,787.54x = 22,710,102.02
  5. Step 5: Solve for x
    x = 22,710,102.02/7,787.54
  6. Step 6: Final answer
    x = 2,916.21

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.